We present a general technique for constructing nonlocal transparent boundary conditions for one-dimensional Schro ¨dinger-type solution of (1) only in a finite subdomain of ⍀ in order to equations. Our method supplies boundary conditions for theexamine the time evolution in the surrounding of a spe
Non-reflecting boundary conditions for the two-dimensional Schrödinger equation
✍ Scribed by Achim Schädle
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 83 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0165-2125
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✦ Synopsis
Non-reflecting boundary conditions are introduced for the two-dimensional Fresnel/Schrödinger equation. These are nonlocal in time and in space. Time discretization is done by the trapezoidal rule in the interior and by convolution quadrature on the boundary. A convergence estimate is given for the semidiscretization. Space discretization is done using the finite element method and coupling the boundary conditions by collocation. A numerical example is given.
📜 SIMILAR VOLUMES
We present a new algorithm, the time dependent phase space filter (TDPSF) which is used to solve time dependent nonlinear Schro ¨dinger equations (NLS). The algorithm consists of solving the NLS on a box with periodic boundary conditions (by any algorithm). Periodically in time we decompose the solu
In the present paper, the nonlocal boundary value problem Schrödinger equation in a Hilbert space H with the self-adjoint operator A is considered. Stability estimates for the solution of this problem are established. Two nonlocal boundary value problems are investigated. The first and second order